diff --git a/CMakeLists.txt b/CMakeLists.txt
index d5f2d9bb..c5742ab8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.12...3.20)
 project(
-  MPItrampoline VERSION 4.0.0
+  MPItrampoline VERSION 4.0.1
   DESCRIPTION "MPI trampoline"
   HOMEPAGE_URL "https://github.com/eschnett/MPItrampoline"
   LANGUAGES NONE